85 



gum comes from Kordofan. The gum collected in CASE 

 Senegal is mostly shipped to Bordeaux to the extent of 44. 

 30-35,000 cwts. annually for the last few years. The 

 import of Gum Arabic from all sources into the United 

 Kingdom during 1905 amounted to 73,222 cwts. of 

 the value M £105,062. The bulk of the imports come 

 through Egypt. 



Though the best Gum Arabic of commerce is furnished 

 by the species under notice, other species furnish inferior 

 qualities. The following are the names of some of the 

 principal Gum Arabic yielding plants, with the trade 

 names of the gums. 



Acacia Senegal, Willd., yielding Kordofan, Picked Turkey, 



White Sennaar or Sene- 

 gal Gum. 

 A. ste^iocarjM, Hochst. „ Suakin, Talca, or Talha 

 and A . Seijal, Delile, Gum. 



var. Fistula, 

 A. ccrabicccy 'WiWd. ... „ Morocco, Mogadore, 



Brown Barbary, or East 

 Indian Gum. 

 A. horrida, Willd. ... „ Cape Gum. 

 A. 2^ycnuntlia, Bth. ... "] 

 A. decurrens, Willd.... 



A. dealhata, Link. 1 „ Australian or Wattle Gum. 

 A. homalophylla, A. ( 



Cunn., and perhaps j 



other species ...J 



Gum Arabic is largely used for giving lustre to crape 

 and silk, for thickening colours and mordants in calico 

 printing, in the manufacture of ink and blacking, amd 

 very largely as a mucilage. 



No. 239. CuTCH or Black Catechu prepared by 

 boiling the heartT^^ood and pods of the Khair (Acacia 

 Catechu, Willd.), and A. Suma, Kurz., forest trees of • 

 India and Burma. It contains much tannin, and is exten- 

 sively exported to Europe for the use of tanners. 



The word Catechu signifies tree-juice. It is sometimes 

 called Terra Japonica, a name which is more correctly 

 applied to Uncaria Gambier (see case 63). 



